Steam-trap



(No Model.)

F. LAMPLOUGH.

STEAM TRAP.

NCQ 590,895.

Patented Sept. 28,1897.

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lUrvrTnn STATES PATENT @Trios FREDERICK LAMPLOUGH, vOE GLEN RIDGE, NEW JERSEY.

STEANljTRAP.

SPECIFICATION forming part of Letters Patent No. 590,895, dated September 28, 1897.

Application filed September 25, 1895. Renewed August 13, 1897, Serial No. 648,160. (No model.)

vescape of liquids, such as water of condensation, and prevent the escape of vapor or gas, such as steam.

My improved trap depends -in its operation upon the principle of the movement caused by expansion and contraction under changes of temperature, a closed chamber containing alcohol or other suitable substance being the means employed.

A Myinvention consists in the novel construction, combination, and arrangement of parts hereinafter described and claimed.

Referring to the accompanying drawings Figure 1 is a vertical transverse sectional View of my improved trap. Fig. 2 is a view, partly in section, of 'a modilied form of the pressure -.chamber; and Fig. 3 is a vertical transverse sectional view of another modification. l

Referring to Fig. 1, the body of the trap is preferably formed, as at A, with a screwed inlet at B, a central passage at C, and a screwed outlet E. Upon the part of the body D is secured a chamber composed of two parts Z Z. The parts Z Z are preferably held together with screws 4, which also bind the periphery of a diaphragm Y between said parts Z Z. The center of the diaphragm Y is Xed to a valve XV by means of a screw connection 3, and the extension of said valve U X may be hollow. One part Z is provided with a tubular piece 5, with a passage 6 therethrough, and the extension U of the valve W projects into the passage C and passes through a guide V therein and has a perforated end,'as shown. An outlet-pipe 11 is screwed into the screwed portion E of the chamber A, and a by-pass pipe 8 is arranged between the exvphragm H.

tension 7 of chamber Z Z and the outlet-pipe 1l, a suitable nipple 10 couplingi), and locknut 12 being provided to connect the by-pass pipe 8 with the outlet 11. is provided with an extension A'7, linto which is `screwed an extension M on the case K,

which, together with a cap L, provided with a screw G' in its center, forms a closed chamber 15, which is provided with a Iiexible dia- The center of thisdiaphragm is connected to a suitable valve F by a screw G, while the periphery of the said Vdiaphragm is fixed to the case K and the cap or cover L. The space between the diaphragm H and cover L is partly filled with alcoholas preference, and the extension M of the case K can be adjusted and locked bythe nut N, so as to give proper regulation to the movement of the Valve F, which seats litself upon the annular extension 5, projecting from the case Z within the extension 7.

y The operation of the trap is as follows: The valve F,'having been properly adjusted by meansof the screwed extension M and locknut N and the steam-pipe connected to the inlet B, theheat of the steam passing through the passage V6 will volatilize the alcohol in the chamber 15, which in expanding will distend the said diaphragm, so that the valve F will close the orice 6. Vhen the passage 6 is closed by said valve F, pressure accumulates'at the back of thel diaphragm Y, forcing said diaphragm', together with the valve W, against the end' of passage C, and so closing the passage. When the chamber 15 cools, the valve F opens the passage 6, which is the same size as the passage in the extensions U X of the valve V. The steam is therefore liberated from behind the diaphragm Y and through the by-pass 8 as quickly as it passes through the passage throughthe extensions of the valve NV. The said diaphragm therefore assumes'its original position and opens the valve W. The discharge of the water of condensation then takes place and continues until the diaphragm H again comes into operation.

Fig. 2 shows a modification of Fig. 1,-,wherein a piston 14 is formed on the extension X of the valve W, said piston working in a cylinder 13, with a screwed extension 7, with The chamber Z Z IOO tubular part 5, and passage G, as hereinbcfore described. It will be readily understood that the action is the same as described with refence to thediaphragm Y.

Fig. 3 is another modification of the steamtrap, in Which the alcohol-chamber is situated at and is preferably formed With an elastic case, so as to act as if it were composed of two diaphragms I-I, joined at their pcripheries. The body of the trap is A, with an inlet B, outlet E, and passage C. The body of the trap A is preferably made in two l parts, as shown, for the purpose of fixing the ring 20, as hereinafter described. The seci ond valve W has hollow extensions U, arigid l chamber 16, and two flexible chambers 17 and 1S, formed similarly to chamber 15. The valve NV and its adj uncts, as well as the valve F, are carried by the ring 20, as shown. A l passage 19 makes connection between the chambers 16, 17, and 1S, while the central passage X opens out against the valve F. The chamber 15 is carried by a pin 2S on the lever 21 and is guided by the projections 2l and 22, and at the other end has a plate 25 in contact with an ad justing-screw 26, which is iittcd with a suitable lock-nut 27, for the purpose hereinbefore described.

It Will be readily understood that the action of this trap is similar to that described with reference to Fig. 1, except thatthe condensation of the alcohol is accelerated by the current of air induced through the outlet E and the holes 29 in the case A. The chamber 16 will form a condenser and so keep the flexible chambers 17 and 1S charged with Water, which Will pass down the passage 19 thereto. The life ofthe diaphragm is thus much lengthened. One chamber 17 may be employed, or more than the two, as shown, according to the sensitiveness desired.

It will be obvious that any other suitable y expansive medium may be employed besides l alcohol, whether solids or hermetically-sealed liquids.

The chamber 15, as described with reference to Fig. 1, can be arranged for using it and the valve F as a stop\'alve,\vl1en required.

IIavin g now particularly described and ascertained the nature of the said invention and -2 in what manner the same is to be performed,

I declare that what I claim is l. In a steam-trap, the combination with the body A, having the internal passage C,

l of the casing Z, mounted on the body A and formed with a central tubular extension 7, having an internal nozzle 5, an expansionchamber 15, mounted on said tubular extension, a diaphragm II, iitted within said chamber 15, and carrying a valve F, to close and open the end ot nozzle 5, a diaphragm Y, fitted to the chamber or casing Z, and a tubular stem U X carried by said diaphragm, and provided with a valve to close and open co1nmunicatiou between passage Gand trapout let E, and a by-pass pipe 8, leading from the extension 7, to the outlet E, substantially as described.

2. In a steam-trap, the combination with an expausiomchamber having a diaphragm and an attached valve adapted under expansion to close an outlet for Water of condensation, of a second chamber containinga diaphragm so arranged as to be acted upon by accumulation of steam-pressure and connecting with a valve which is also adapted and arranged to close a similar outlet, substantially as described.

In testimony that I claim the foregoing I have hereunto set my hand this 27th day of August, 1895.

l?. LAMPLOUGII.

Witnesses:

F. II. E. SHIr'roN, G. T. HARRAP. 

